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World Health Organization Collaborating Center for Surveillance, Epidemiology, and Control of Influenza

Published:

Mar 06 2015

Source:

MMWR Morb Mortal Wkly Rep. 2015; 64(8):206-212.

Description:

Influenza activity in the United States began to increase in mid-November, remained elevated through February 21, 2015, and is expected to continue for several more weeks. To date, influenza A (H3N2) viruses have predominated overall. As has been obs...